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Circuit breaker tripping well below the max rated capacity

  • 22-11-2023 12:02pm
    #1
    ddonq1412
    Registered Users Posts: 77 ✭✭


    At present Solis 5kw inverter using the standard cables 25mm cables going to a projoy circuit breaker rated at 160v 125amps. It's currently tripping out at 70 amps when under load for a few mins. After the breaker it goes back to 25mm cable going to battery. Cable length is less than a meter.



Comments

  • #2
    graememk
    Moderators, Home & Garden Moderators Posts: 6,384 Mod ✭✭✭✭graememk


    If it never got overheated, I'd say it's faulty.

    Cable length rather irrelevant.

    Is the mcb getting hot?



  • #3
    ddonq1412
    Registered Users Posts: 77 ✭✭ddonq1412


    i have replace the bootlace ferrels on the cable ends as they seemed to have the cable sitting in them rather than crimped. they are now crimped the unit was getting warm cable not so much. i have the switch powered on and it currently charging at 67amps at present for 20 mins.



  • #4
    jasgrif11
    Registered Users, Registered Users 2 Posts: 438 ✭✭jasgrif11


    What is the make of the circuit breaker (any pics)?



  • #5
    ddonq1412
    Registered Users Posts: 77 ✭✭ddonq1412


    IMG20231122154137.jpg

    This is the breaker



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